Attachment for internal-combustion engines.



R. L JENKINS. ATTACHMENT FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED MAR. 12. 1917.

Patented June 12, 1917.

W T/VESSES m w FMM' ATTORNEYS ROBERT I1. JENKINS, OF RICHMOND, VIRGINIA.

ATTACHMENT FOB INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patented June 12, 191?.

Application filed March 12, 1917. Serial No. 154,159.

1 b all whom it may concern:

Be it known that I, Roenn'r L. JENKINS, citizen of the United States, and a resident of Richmond, in the county of Henrico and State of Virginia, have invented a certain new and useful Improvement in Attachments for Internal-Combustion Engines, of which the following is a specification.

My invention relates to improvements in attachments for internal combustion engines, and it consists in the combinations, constructions, and arrangements herein described and claimed.

An object of my invention is to provide a device by means of which additional air may be mixed with the charge coming from the carbureter so as to dilute the explosive mixture when desired, thereby saving in gasolene.

A further object of my invention is to provide a device which may be used as an auxiliary carbureter for supplying an explosive mixture.

A further object of my invention is to provide a device which may serve as an efficient means for testing the condition of the working parts of the engine, so as to readily locate engine troubles.

A further object of my invention is to provide a device of the type describeol which may be used as a priming device in cold weather.

Other objects and advantages will appear in the following specification, and'the novel features of the invention will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawing, forming a part of this application, and in which:

Figure 1 is a section through the dash and hood, showing the invention applied to an automobile engine;

Fig. 2 is a section taken centrally through the attachment, and

Fig. 3 is a section along the line 33 of Fig. 2.

In carrying out my invention, I provide a body portion 1 having a flat side 2 adapted to lie close to the dashboard 3 to which it may be secured in any suitable way, such as by screws 4:. This body portion is formed into an integral cup 5 which is provided with a hanged cover 6. At the upper edge of the cup 5, just beneath the cover, is a cut away portion 7 which will admit air.

a seat 13 for a ball valve 1 1. A wire coil 15 is, disposed above the ball 14-, and the purpose of the coil is to cushion and prevent hammering of the ball 14 against the bottom of the friction plug 16. a

The chamber 8 communicates with the valve chamber '12 by means of a passageway 17. A pipe 18 is formed integrally with the body portion 1, and is connected by means of a pipe 19, see Fig. 1, with a portion of the intake manifold 20 between the carburotor 21 and the cylinders 22.

On the inside of the cup 4; I may place an absorbent material, such as lamp wicking 23.

From the foregoing description of the various parts of the device, the operation thereof, may be readily understood.

Consider the case where the device is to be used as an air inlet for diluting the mixture coming from the earbureter. In this case, the absorbent material 23 is dispensed with, and by manipulating the needle valve 11, the right proportion of air may be secured. On each in stroke of the piston the air will be sucked through the openings 7, down past the needle valve, past the ball valve 1-1 which will have lifted, and. thence by pipes 18 and 19 into the manifold where it mixes with the charge and dilutes it. In certain instances it is desirable to increase the amount of air beyond that which the carburetor can supply. This amount may be regulated by the needle valve 11.

In using the device as a primer, the cup may be partly filled with gasolene and the needle valve opened, so that on cranking the engine, the fluid itself will be injected into the manifold, thus enriching the mixture and causing explosion to take place, espccially when the cylinders are cold.

In using the device as an auxiliary carbureter the wicking or absorbent material 23 is placed in the cup, and gasolene is poured on the wicking to saturate it. Now, when the needle valve is opened and the engine started, air will be drawn in from.

Air

the intake 7, will pass through the wicking, vaporizing the gasolene, which will then be drawn past the ball valve and into the intake manifold, by means of the pipe 19, thus increasing the explosive charge. In this case, as in the others, the needle valve may be manipulated to permit more or less of the explosive charge to pass from the cup 7.

In the use of the device asa testing means, for ascertaining the condition of the working parts of the engine in cases where the engine will not run upon being cranked, the needle valve 11 is opened so that when the engine is cranked an explosive charge will be admitted to the intake manifold from the auxiliary carbureter, that is to say, from the cup 5. It the engine should run until the charge in the cup 5 is exhausted, and should .then stop, it will be readily seen that the ignition system is in good condition, and the trouble must be in the gasolene supply line. The operator can then look for leaks or stoppage in the carburetor, or may find that his main gasolene supply has been exhausted, or that other trouble has developed in the supply system. If, on the other hand, the engine will not run, the operator may at once conclude that the trouble lies with the ignition.

The auxiliary carburetor having few parts, not liable to easily get out of order, so that he knows that the cylinders are being supplied with an explosive charge, and that the trouble is probably due to the fact that the ignition. is not working properly.

Normally the needle alve 11 is closed and the ball. valve 13 is seated, and in such case the engine is in the same condition and goes in the same way as if the attachment were not connected with it at all. The convenience of the device, the many uses to which it may bilists.

I claim:

1. An attachment for internal combustion engines, comprising a body portion, having a recess constituting a cup, and an auxiliary recess communicating with the bottom of the cup, an inlet valve disposed within said recess, the opposite end of the inlet valve extending through the base of the cup, said body portion having a vertically disposed valve chamber, a valve in said chamber, a conduit communicating with the recess at one end and with the valve chamber at the other, and a pipe establishingcommunication between said valve chamber and the cylinders of the engine.

An attachment for internal combustion engines comprising a body portion having a vertically disposed valve chamber, a recess constituting a cup and an auxiliary recess comn'iunicating with said first named recess at the lowerend thereof, a conduit joining the valve chamber with said auxiliary recess, a needle valve disposed within the auxiliary recess and having a conical seat at the end of said conduit, the stem 01": the said needle alve extending through the base of the body portion and terminating in a hand wheel, ball valve for closing one end of said conduit, means for cushioning the ball valve disposed within the valve chamber, and a pipe for establishing communication between the valve chamber and the cylinders of the engine.

ROBERT L. JENKINS.

Witnesses SAM DUDLEY CosnY, MAYME R. MAY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). C. 

